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diff --git a/trunk/php/xmlrpc/libxmlrpc/queue.h b/trunk/php/xmlrpc/libxmlrpc/queue.h
new file mode 100644
index 0000000..be73f6d
--- /dev/null
+++ b/trunk/php/xmlrpc/libxmlrpc/queue.h
@@ -0,0 +1,89 @@
+/* 
+ * Date last modified: Jan 2001
+ * Modifications by Dan Libby (dan@libby.com), including:
+ *  - various fixes, null checks, etc
+ *  - addition of Q_Iter funcs, macros
+ */
+
+/*
+ *  File : q.h
+ *
+ *  Peter Yard  02 Jan 1993.
+ *
+ *  Disclaimer: This code is released to the public domain.
+ */
+
+#ifndef Q__H
+#define Q__H
+
+#ifndef False_
+   #define False_ 0
+#endif
+
+#ifndef True_
+   #define True_ 1
+#endif
+
+typedef struct nodeptr datanode;
+
+typedef struct nodeptr {
+   void        *data ;
+   datanode    *prev, *next ;
+} node ;
+
+/* For external use with Q_Iter* funcs */
+typedef struct nodeptr* q_iter;
+
+typedef struct {
+   node        *head, *tail, *cursor;
+   int         size, sorted, item_deleted;
+} queue;
+
+typedef  struct {
+   void        *dataptr;
+   node        *loc ;
+} index_elt ;
+
+
+int    Q_Init(queue  *q);
+void   Q_Destroy(queue *q);
+int    Q_IsEmpty(queue *q);
+int    Q_Size(queue *q);
+int    Q_AtHead(queue *q);
+int    Q_AtTail(queue *q);
+int    Q_PushHead(queue *q, void *d);
+int    Q_PushTail(queue *q, void *d);
+void  *Q_Head(queue *q);
+void  *Q_Tail(queue *q);
+void  *Q_PopHead(queue *q);
+void  *Q_PopTail(queue *q);
+void  *Q_Next(queue *q);
+void  *Q_Previous(queue *q);
+void  *Q_DelCur(queue *q);
+void  *Q_Get(queue *q);
+int    Q_Put(queue *q, void *data);
+int    Q_Sort(queue *q, int (*Comp)(const void *, const void *));
+int    Q_Find(queue *q, void *data,
+              int (*Comp)(const void *, const void *));
+void  *Q_Seek(queue *q, void *data,
+              int (*Comp)(const void *, const void *));
+int    Q_Insert(queue *q, void *data,
+                int (*Comp)(const void *, const void *));
+
+/* read only funcs for iterating through queue. above funcs modify queue */
+q_iter Q_Iter_Head(queue *q);
+q_iter Q_Iter_Tail(queue *q);
+q_iter Q_Iter_Next(q_iter qi);
+q_iter Q_Iter_Prev(q_iter qi);
+void*  Q_Iter_Get(q_iter qi);
+int    Q_Iter_Put(q_iter qi, void* data); /* not read only! here for completeness. */
+void*  Q_Iter_Del(queue *q, q_iter iter); /* not read only! here for completeness. */
+
+/* Fast (macro'd) versions of above */
+#define Q_Iter_Head_F(q) (q ? (q_iter)((queue*)q)->head : NULL)
+#define Q_Iter_Tail_F(q) (q ? (q_iter)((queue*)q)->tail : NULL)
+#define Q_Iter_Next_F(qi) (qi ? (q_iter)((node*)qi)->next : NULL)
+#define Q_Iter_Prev_F(qi) (qi ? (q_iter)((node*)qi)->prev : NULL)
+#define Q_Iter_Get_F(qi) (qi ? ((node*)qi)->data : NULL)
+
+#endif /* Q__H */